Re: GeoTC and Spice netlists

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Paul Nicholson" <paul-at-abelian.demon.co.uk> 

Steve Conner wrote:

 > I don't know how to get it to merge an external
 > netlist with its own self-generated one, or how
 > to tell it the connections between the two
 > netlists. I'll play with it and see what I can do.

Some progress, Marco has been able to load a subcircuit
of Thor into Microsim and it runs fine.

The subcircuit is in
  http://www.abelian.demon.co.uk/tmp/thors.cir

and an example top-level circuit which uses it is
in
  http://www.abelian.demon.co.uk/tmp/thor-test.cir

which models the circuit shown in
   http://www.abelian.demon.co.uk/tmp/thors.model.gif

Comparison between tssp, spice, and measured waveforms
for Thor base current is in

  http://www.abelian.demon.co.uk/tmp/thors-dot-compare.gif

Marco gets the precise same waveform from the Microsim
spice.

That means we now have the technology to use detailed
distributed coil models inside spice circuit simulators.

That should make life interesting, especially for
magnifier designers - two distributed models, one for
the primary/secondary and another for tertiary/topload,
plugged into the circuit sim, would enable the tuning
of the complete system to be realistically simulated.

For this to be available in a convenient form for
windows users, Antonio would have to added some code
to his suite of software - his is the only software out
there that can do this.

To change the tuning of the model, eg to adjust a primary
tap or topload height, the subcircuit must be regenerated
from the distributed model of the resonator reactances.
Therefore the user needs to have this in a local application.

--
Paul Nicholson,
Manchester, UK.
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